結果
| 問題 |
No.2387 Yokan Factory
|
| コンテスト | |
| ユーザー |
cleantted
|
| 提出日時 | 2023-06-14 03:51:24 |
| 言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
| 結果 |
AC
|
| 実行時間 | 4,399 ms / 5,000 ms |
| コード長 | 2,206 bytes |
| コンパイル時間 | 215 ms |
| コンパイル使用メモリ | 13,056 KB |
| 実行使用メモリ | 52,348 KB |
| 最終ジャッジ日時 | 2024-06-23 20:13:36 |
| 合計ジャッジ時間 | 34,277 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 35 |
ソースコード
# import bisect
import copy
import heapq
import itertools
import math
import operator
import random
import sys
from bisect import bisect, bisect_left, bisect_right, insort
from collections import Counter, deque
from fractions import Fraction
from functools import cmp_to_key, lru_cache, partial
from inspect import currentframe
from math import ceil, gcd, log10, pi, sqrt
from typing import Iterable, Iterator, List, Tuple, TypeVar, Union
# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
# import string
# import networkx as nx
input = sys.stdin.readline
sys.setrecursionlimit(10000000)
# mod = 10 ** 9 + 7
mod = 998244353
# mod = 1 << 128
# mod = 10 ** 30 + 1
INF = 1 << 61
DIFF = 10 ** -9
DX = [1, 0, -1, 0, 1, 1, -1, -1]
DY = [0, 1, 0, -1, 1, -1, 1, -1]
def read_values(): return tuple(map(int, input().split()))
def read_index(): return tuple(map(lambda x: int(x) - 1, input().split()))
def read_list(): return list(read_values())
def read_lists(N): return [read_list() for _ in range(N)]
def dprint(*values): print(*values, file=sys.stderr)
def dprint2(*values):
names = {id(v): k for k, v in currentframe().f_back.f_locals.items()}
dprint(", ".join(f"{names.get(id(value), '???')}={repr(value)}" for value in values))
def main():
N, M, X = read_values()
G = [[] for _ in range(N)]
for _ in range(M):
u, v, a, b = read_values()
u -= 1
v -= 1
G[u].append((v, a, b))
G[v].append((u, a, b))
l = -1
r = 10 ** 9 + 10
while r - l > 1:
m = (l + r) // 2
S = [(0, 0)]
fixed = [False] * N
D = [INF] * N
D[0] = 0
while S:
c, i = heapq.heappop(S)
if i == N - 1:
break
if fixed[i]:
continue
fixed[i] = True
for j, a, b in G[i]:
if m > b:
continue
if D[j] <= c + a:
continue
D[j] = c + a
heapq.heappush(S, (c + a, j))
if D[N - 1] <= X:
l = m
else:
r = m
print(l)
if __name__ == "__main__":
main()
cleantted